I Know That You Know

Name: I Know That You Know
Genre: Comedy
Released: March 19, 1987
Cast: Malcolm-Jamal Warner, Lisa Bonet, Bill Cosby, Keshia Knight Pulliam, Phylicia Rashad

The Cosby Show: Season 3: Episode 21

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The Cosby Show

Episode Details & Credits

NBC | Air Date: March 19, 1987

Starring: Malcolm-Jamal Warner, Lisa Bonet, Bill Cosby, Keshia Knight Pulliam, Phylicia Rashad, Tempestt Bledsoe, Sabrina Le Beauf, Geoffrey Owens

Summary: Theo plays pranks on the family after he receives a joke kit he sent away for but he can't seem to fool Cliff. Sondra and Elvin make a surprise visit.

Genre(s): Comedy

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Season 3 Episodes

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S3:E25. Hillman
Air Date: May 7, 1987
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S3:E24. Planning Parenthood
Air Date: April 30, 1987
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S3:E23. Bald and Beautiful
Air Date: April 9, 1987

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Seasons & Episodes

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Series Overview
Season 8

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- Season 8 Overview
  Air Date: September 19, 1991
Season 7

tbd
- Season 7 Overview
  Air Date: September 20, 1990
Season 6

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- Season 6 Overview
  Air Date: September 21, 1989
Season 5

tbd
- Season 5 Overview
  Air Date: October 6, 1988
Season 4

tbd
- Season 4 Overview
  Air Date: September 24, 1987
Season 3

tbd
- Season 3 Overview
  Air Date: September 25, 1986
- tbd
  S3:E25. Hillman
  Air Date: May 7, 1987
- tbd
  S3:E24. Planning Parenthood
  Air Date: April 30, 1987
- tbd
  S3:E23. Bald and Beautiful
  Air Date: April 9, 1987
- tbd
  S3:E22. Andalusian Flu
  Air Date: April 2, 1987
- tbd
  S3:E21. I Know That You Know
  Air Date: March 19, 1987
- tbd
  S3:E20. Cliff's 50th Birthday
  Air Date: March 12, 1987
- tbd
  S3:E19. The Shower
  Air Date: February 26, 1987
- tbd
  S3:E18. You Only Hurt the One You Love
  Air Date: February 19, 1987
- tbd
  S3:E17. Calling Doctor Huxtable
  Air Date: February 12, 1987
- tbd
  S3:E16. Denise Gets an Opinion
  Air Date: February 5, 1987
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  S3:E15. Say Hello to a Good Buy
  Air Date: January 22, 1987
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  S3:E14. Rudy Spends the Night
  Air Date: January 15, 1987
- tbd
  S3:E13. Monster Man Huxtable
  Air Date: January 8, 1987
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  S3:E12. Cliff in Charge
  Air Date: December 18, 1986
- tbd
  S3:E11. War Stories
  Air Date: December 11, 1986
- tbd
  S3:E10. A Girl and Her Dog
  Air Date: December 4, 1986
- tbd
  S3:E9. Denise Gets a D
  Air Date: November 20, 1986
- tbd
  S3:E8. Vanessa's Rich
  Air Date: November 13, 1986
- tbd
  S3:E7. Theo's Flight
  Air Date: November 6, 1986
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  S3:E6. The March
  Air Date: October 30, 1986
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  S3:E5. Mother, May I?
  Air Date: October 23, 1986
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  S3:E4. Man Talk
  Air Date: October 16, 1986
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  S3:E3. Golden Anniversary
  Air Date: October 9, 1986
- tbd
  S3:E2. Food for Thought
  Air Date: October 2, 1986
- tbd
  S3:E1. Bring 'em Back Alive
  Air Date: September 25, 1986
Season 2

tbd
- Season 2 Overview
  Air Date: September 26, 1985
Season 1

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- Season 1 Overview
  Air Date: September 20, 1984